oxidizer droplets injection
 

Hi,
On a basis the tutorial "liquid fuel combustion", I am trying to model
injection of several droplets of OXIDIZER surrounded by a stream of GASEOUS FUEL

I create a new liquid material and assign it all physical properties.

I cannot get convergence under equilibrium (mixture fraction z)chemistry
when I set z=1 for the co-flow (gaseous fuel).

Is Fluent Model not approriate for oxidizer droplets combustion (only fuel) ?

Any help is welcome
Many thanks